Let's just say 50,000 pounds is water ballast. That's about 6,000 gallons, which is about 800 cubic feet, which is roughly a 10' x 10' x 8' box. Doesn't even seem possible to fit 6,000 gallons on a boat like that.
At some point you have to talk about what the power plant is to push that through the water as well. I know my boat, on the water, full ballast, wedge down, and a full crew is less than 7000 pounds. Probably closer to 6000 pounds. With a 450 HP V8, at Powell elevation (which is low for us), I couldn't push much more weight.
And this "boat" is talking about pushing somewhere in the neighborhood of 10 times that amount of weight? I know there are some people on here that could likely chart it out, but how much HP are you talking about at that point to push that much weight? Certainly more than is realistic, especially when you are talking about trying to do it with electric power.
Add to that the best they can do is put out a photo that looks like a 7th grader got a couple lessons in photo shop.
The boat just isn't real, or worth getting worked up about.